System to govern remote a electrical writing machine, using the telephone lines. (Machine-translation by Google Translate, not legally binding)

摘要

System for remotely controlling an electric typewriter, using the telephone lines, which is characterized by the fact that the connection is made with the simple acoustic coupling between the transmitting machine and the ordinary telephone device, at a convenient audible frequency, over the that a series of positive or negative impulses are modulated, or a certain combination of both, using seven cycles of square wave, with a positive half cycle and a negative one on a zero reference, the transmitter being operated by a typewriter keyboard and the electronic equipment suitable for the production of the aforementioned impulses from the operation of such keys, the receiver being composed of an input, such as a microphone, magnetic coupling or jack jack, which receives, through the telephone device, an audible modulated signal by the aforementioned series of impulses, acting, through a set of electronic circuits, on a tape punch or on a typewriter of the type used in electronic calculators. (Machine-translation by Google Translate, not legally binding)